Abstract: Fully-mechanized mining with large mining height positively ensures the security, efficiency and large-scale of the mines in China. Increasing the operation rate is considered as a reliable means to improve the coal production and efficiency. The geological condition and equipment in 8101 mining face are introduced in this paper. By analyzing the operating time of the shearer, the daily and team operation rate are calculated respectively and the factors which restrict the production and efficiency of 8101 mining face are found. As a result of it, the improvement measures for increasing the operation rate are proposed from the aspect of people, machine and work condition. These measures would help to improve the production and efficiency of fully-mechanized mining face with large mining face.

Key words: large mining height, fully-mechanized mining, high production and high efficiency, operation rate, improvement measures